From ac4b0d0c4feb291643c0e8a07a92e449e13881b5 Mon Sep 17 00:00:00 2001
From: balrog <balrog@c046a42c-6fe2-441c-8c8c-71466251a162>
Date: Sun, 9 Nov 2008 00:28:40 +0000
Subject: Add qemu_strndup: qemu_strdup with length limit.

Also optimise qemu_strdup by using memcpy - using pstrcpy is usually
suboptimal.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5653 c046a42c-6fe2-441c-8c8c-71466251a162
---
 qemu-malloc.c | 16 +++++++++++++++-
 1 file changed, 15 insertions(+), 1 deletion(-)

(limited to 'qemu-malloc.c')

diff --git a/qemu-malloc.c b/qemu-malloc.c
index 3bffae1fb..dc74efed1 100644
--- a/qemu-malloc.c
+++ b/qemu-malloc.c
@@ -60,6 +60,20 @@ char *qemu_strdup(const char *str)
     ptr = qemu_malloc(len + 1);
     if (!ptr)
         return NULL;
-    pstrcpy(ptr, len + 1, str);
+    memcpy(ptr, str, len + 1);
     return ptr;
 }
+
+char *qemu_strndup(const char *str, size_t size)
+{
+    const char *end = memchr(str, 0, size);
+    char *new;
+
+    if (end)
+        size = end - str;
+
+    new = qemu_malloc(size + 1);
+    new[size] = 0;
+
+    return memcpy(new, str, size);
+}
-- 
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